Academic literature on the topic 'QCD sum rules'

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Journal articles on the topic "QCD sum rules"

1

Choe, Seungho. "gπΛΣandgKΣΞfrom QCD sum rules." Physical Review C 57, no. 4 (April 1, 1998): 2061–64. http://dx.doi.org/10.1103/physrevc.57.2061.

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Marrow, J., J. Parker, and G. Shaw. "QCD sum rules: charmonium." Zeitschrift f�r Physik C Particles and Fields 37, no. 1 (March 1987): 103–12. http://dx.doi.org/10.1007/bf01442073.

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DOMINGUEZ, C. A. "INTRODUCTION TO QCD SUM RULES." Modern Physics Letters A 28, no. 24 (August 7, 2013): 1360002. http://dx.doi.org/10.1142/s021773231360002x.

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A general, and very basic introduction to QCD sum rules is presented, with emphasis on recent issues to be described at length in other papers in this issue. Collectively, these papers constitute the proceedings of the International Workshop on Determination of the Fundamental Parameters of QCD, Singapore, March 2013.
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Gubler, Philipp, Daisuke Jido, Toru Kojo, Tetsuo Nishikawa, and Makoto Oka. "pentaquarks in QCD sum rules." Nuclear Physics A 835, no. 1-4 (April 2010): 342–45. http://dx.doi.org/10.1016/j.nuclphysa.2010.01.214.

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Cerqueira, A., B. Osório Rodrigues, and M. E. Bracco. "vertex from QCD sum rules." Nuclear Physics A 874 (January 2012): 130–42. http://dx.doi.org/10.1016/j.nuclphysa.2011.11.004.

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Navarra, F. S., and M. Nielsen. "gNDΛc from QCD sum rules." Physics Letters B 443, no. 1-4 (December 1998): 285–92. http://dx.doi.org/10.1016/s0370-2693(98)01247-7.

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Huang, Chao-Shang, Cong-Feng Qiao, and Hua-Gang Yan. "Decay in QCD sum rules." Physics Letters B 437, no. 3-4 (October 1998): 403–7. http://dx.doi.org/10.1016/s0370-2693(98)00909-5.

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Nishikawa, Tetsuo, Yoshihiko Kondo, Osamu Morimatsu, and Yoshiko Kanada-En'yo. "Pentaquarks in QCD Sum Rules." Progress of Theoretical Physics Supplement 168 (2007): 54–57. http://dx.doi.org/10.1143/ptps.168.54.

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Choe, Seungho, Myung Ki Cheoun, and Su Houng Lee. "gKNΛ andgKNΣfrom QCD sum rules." Physical Review C 53, no. 3 (March 1, 1996): 1363–67. http://dx.doi.org/10.1103/physrevc.53.1363.

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Kiselev, V. V., and A. Tkabladze. "SemileptonicBcdecays from QCD sum rules." Physical Review D 48, no. 11 (December 1, 1993): 5208–14. http://dx.doi.org/10.1103/physrevd.48.5208.

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Dissertations / Theses on the topic "QCD sum rules"

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Sarac, Yasemin. "Qcd Sum Rules For The Anticharmed Pentaquark." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608098/index.pdf.

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For the anti-charmed pentaquark state with and without strangeness a QCD sum rule analysis, which is one of the nonperturbative approaches, is presented. For this purpose we employ pentaquark currents with and without strangeness, with two different current for each case. To refine the sum rules we also consider the DN continuum contribution in our analysis since this procedure is important to identify the signal of the pentaquark state. While the sum rules for most of the currents are either non-convergent or dominated by the DN continuum, the one for the non-strange pentaquark current composed of two diquarks and an antiquark, is convergent and has a structure consistent with a positive parity pentaquark state after subtracting out the DN continuum contribution. Arguments are presented on the similarity between the result of the present analysis and that based on the constituent quark models, which predict more stable pentaquark states when the antiquark is heavy.
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Kanik, Inanc. "Light Cone Qcd Sum Rules And Meson Physics." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12610082/index.pdf.

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In this thesis, we applied Light Cone QCD sum rules (LCSR) to several problems in meson physics. Semileptonic B->
eta l v decays are important to get information on Cabibbo-Kobayashi-Maskawa (CKM) matrix elements. We calculated form factors of this decay in LCSR frame. Our results are confirmed by later studies and these similar studies had been used for enhancing result on b to u quark transition matrix element of CKM matrix by BaBar collaboration. We used LCSR method also for calculating coupling constant of radiative rho ->
eta photon decay since the analysis of the vector particle to pseudoscalar particle radiative decay with eta and eta'
mesons in final state can provide insights to the long standing issue of the eta and eta'
mixing. Our result g_{rho eta photon}=(1.4 ±
0.2) is very close to experimental value g_{ rho eta photon} = (1.42 ±
0.12). We also calculated magnetic moment of the rho meson in LCSR frame which is an important parameter since it is strongly related to internal structure of hadron. Our result 2.3 ±
0.5 in units of (e/2m_rho), is in better agreement with lattice QCD results than traditional QCD sum rules. Quark contents of light scalar mesons are still under debate and we analyzed phi ->
K K decays which is important for understanding the quark content of the f0 meson. Our final result is g_{phi KK} = 4.9 ±
0.8 which is in well agreement with existing experimental result g_{phi KK} = 4.8.
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Chan, Chuan-Tsung. "Neutron electric dipole moment from QCD sum rules /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/9708.

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Lavelle, Martin Joseph. "Sum rules and non-perturbative parameters in QCD." Thesis, Imperial College London, 1986. http://hdl.handle.net/10044/1/38082.

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Zhang, Yingwen. "Applications of QCD sum rules at finite temperature." Doctoral thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/30179.

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QCD Sum Rules is one of the most successful quantum field theory frameworks to extract hadronic information from QCD analytically. This technique is based on the Operator Product Expansion (OPE) and Cauchy's Theorem in the complex energy plane. OPE factorizes the short and long distance interactions where the former are calculated using perturbative theory, and the latter are parameterized in terms of the quark and gluon vacuum condensates. By using Cauchy's theorem, the results from QCD calculations can be matched to the hadronic channel, this is known as 'quark-hadron duality'. My Project involves using QCD Sum Rules to determine the behaviour of hadronic parameters of charmonium in the scalar and pseudoscalar channel and also light-light quark mesons in the vector and axial-vector channel at finite temperature. From our results of the behaviour of the width and the hadronic coupling at finite temperature, both channels of charmonium shows signs of survival beyond the deconfinement temperature Tc whereas the light-light quark mesons disappears at Tc. An extension of the method to finite density in. the axial-vector channel of light-light quark mesons also shows signs of disappearance at the deconfinement density μc.
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Mes, Alexes K. "Light Quark Masses from QCD Finite Energy Sum Rules." Master's thesis, Faculty of Science, 2019. http://hdl.handle.net/11427/30901.

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Due to quark-gluon confinement in QCD, the quark masses entering the QCD Lagrangian cannot be measured with the same techniques one would use to determine the mass of non-confined particles. They must be determined either numerically from Lattice QCD, or analytically using QCD sum rules. The latter makes use of the complex squared energy plane, and Cauchy’s theorem for the correlator of axial-vector divergences. This procedure relates a QCD expression containing the quark masses, with an hadronic expression in terms of known hadron masses, couplings, and lifetimes/widths. Thus, the quark masses become a function of known hadronic information. In this dissertation, the light quark masses are determined from a QCD finite energy sum rule, using the pseudoscalar correlator to six-loop order in perturbative QCD, with the leading vacuum condensates and higher order quark mass corrections included. The systematic uncertainties stemming from the hadronic resonance sector are reduced, by introducing an integration kernel in the Cauchy integral in the complex squared energy plane. Additionally, the issue of convergence of the perturbative QCD expression for the pseudoscalar correlator is examined. Both the fixed order perturbation theory (FOPT) method and contour improved perturbation theory (CIPT) method are explored. Our results from the latter exhibit good convergence and stability in the window s0 = 3.0 − 5.0 GeV2 for the strange quark and s0 = 1.5 − 4.0 GeV2 for the up and down quarks; where s0 is the radius of the integration contour in the complex s-plane. The results are: ms(2 GeV) = 91.8 ± 9.9 MeV, mu(2 GeV) = 2.6 ± 0.4 MeV, md(2 GeV) = 5.3 ± 0.4 MeV, and the sum mud ≡ (mu + md)/2, is mud(2 GeV) = 3.9 ± 0.3 MeV. They compare favourably to the PDG and FLAG world averages. Further in this dissertation the updated series expansion of the quark mass renormalization group equation (RGE) to five-loop order is derived. The series provides the relation between a light quark mass in the modified minimal subtraction (MS) scheme defined at some given scale, e.g. at the tau-lepton mass scale, and another chosen energy scale, s. This relation explicitly depicts the renormalization scheme dependence of the running quark mass on the scale parameter, s, and is important in accurately determining a light quark mass at a chosen scale. The five-loop QCD β(as) and γ(as) functions are used in this determination.
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Bodenstein, Sebastian W. "Precision determination of QCD fundamental parameters from Sum rules." Thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/22630.

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Baytemir, Gulsen. "Analysis Of Kappa Meson In Light Cone Qcd Sum Rules." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613672/index.pdf.

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In the present work some hadronic properties of the scalar &kappa
meson are studied. Using the QCD sum rules approach, which is a nonperturbative method, the mass and the overlap amplitude of this meson are calculated. As well as the mass and the overlap amplitude, &kappa
&rarr
K^+&pi
^&minus
decay is also studied. For this decay the coupling constant g_&kappa
K^+&pi
^&minus
is obtained using light cone QCD sum rules which is an extension of the QCD sum rules method. Moreover, the coupling constant is calculated using the experimental decay width and it is compared with the value obtained in light cone QCD sum rules approach. The result of the calculation of g_&kappa
K^+&pi
^&minus
, the one obtained from light cone QCD sum rules approach, is also applied to acquire the f_0 &minus
&sigma
scalar mixing angle, &theta
s, using the ratio g^2 (&kappa
&rarr
K^+&pi
^&minus
)/g^2 (&sigma
&rarr
&pi
&pi
) obtained from experimental decay width. The value of scalar mixing angle is also compared with its experimental results.
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Chamoun, Nidal. "QCD sum rules and their applications to deep inelastic scattering." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320232.

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Aydemir, Ufuk. "Strong Decays Of The Dsj (2317) Mesons Using Qcd Sum Rules." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608591/index.pdf.

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Unexpected properties of recently discovered mesons DsJ(2317) and DsJ(2460) have caused an excitement in the high energy community. These mesons are under experimental study in BaBar, Belle and CLEO. The experimental data on these mesons is quite limited at the moment, but it is expected to be improved in the following years. The unexpected properties of these mesons, such as the low mass, and small width, have caused speculations about their structure. Various models have been proposed which go beyond the simple quark-antiquark picture of the mesons, such as a meson molecule, or a four-quark state. Therefore, understanding the underlying structure of these mesons can reveal a deeper understanding of QCD. In this thesis, the strong decay of the DsJ(2317) meson, DsJ(2317)-->
Dspi0, is studied using three-point QCD Sum Rules method in the conventional cs framework. DsJ(2317) ->
Dspi0 decay violates isospin symmetry. Therefore, this decay is studied as a two stage process
an isospin conserving DsJ(2317) -->
Ds eta decay followed by the conversion of eta into a pi0 due to isospin violation.
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Books on the topic "QCD sum rules"

1

QCD spectral sum rules. Singapore: World Scientific, 1989.

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Gubler, Philipp. A Bayesian Analysis of QCD Sum Rules. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54318-3.

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Gubler, Philipp. A Bayesian Analysis of QCD Sum Rules. Tokyo: Springer Japan, 2013.

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A, Shifman Mikhail, ed. Vacuum structure and QCD sum rules. Amsterdam: North-Holland, 1992.

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Bayesian Analysis Of Qcd Sum Rules. Springer Verlag, Japan, 2013.

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Vacuum Structure and QCD Sum Rules. Elsevier, 1992. http://dx.doi.org/10.1016/c2009-0-10172-1.

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Recent Progress in Qcd Spectral Sum Rules. World Scientific Publishing Company, 2007.

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Gubler, Philipp. A Bayesian Analysis of QCD Sum Rules. Springer, 2013.

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Khodjamirian, Alexander. Hadron Form Factors: From Basic Phenomenology to QCD Sum Rules. Taylor & Francis Group, 2020.

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Khodjamirian, Alexander. Hadron Form Factors: From Basic Phenomenology to QCD Sum Rules. Taylor & Francis Group, 2020.

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Book chapters on the topic "QCD sum rules"

1

Dey, Mira, and Jishnu Dey. "QCD Sum Rules." In Springer Series in Nuclear and Particle Physics, 83–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-84965-7_9.

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Dominguez, Cesareo A. "QCD Chiral Sum Rules." In SpringerBriefs in Physics, 39–43. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97722-5_7.

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Gubler, Philipp. "Basics of QCD Sum Rules." In A Bayesian Analysis of QCD Sum Rules, 25–50. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54318-3_3.

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Weyers, J. "An Introduction to QCD Sum Rules." In Particle Physics, 171–95. Boston, MA: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-1877-4_7.

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Dominguez, Cesareo A. "QCD Sum Rules at Finite Temperature." In SpringerBriefs in Physics, 81–85. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97722-5_12.

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Gubler, Philipp. "Basic Properties of QCD." In A Bayesian Analysis of QCD Sum Rules, 11–23. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54318-3_2.

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Hwang, W. Y. Pauchy. "QCD Sum Rules and the Nucleon Structure." In Contemporary Topics in Medium Energy Physics, 17–35. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4757-9835-7_3.

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Gubler, Philipp. "MEM Analysis of the Nucleon Sum Rule." In A Bayesian Analysis of QCD Sum Rules, 97–121. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54318-3_6.

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Gubler, Philipp. "MEM Analysis of the $$\rho $$ ρ Meson Sum Rule." In A Bayesian Analysis of QCD Sum Rules, 77–96. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54318-3_5.

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Gubler, Philipp. "Introduction." In A Bayesian Analysis of QCD Sum Rules, 3–9. Tokyo: Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54318-3_1.

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Conference papers on the topic "QCD sum rules"

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Dong, Rui-Rui, Hua-Xing Chen, Wei Chen, Xiang Liu, and Shi-Lin Zhu. "Exotica in QCD sum rules." In The 18th International Conference on Hadron Spectroscopy and Structure (HADRON2019). WORLD SCIENTIFIC, 2020. http://dx.doi.org/10.1142/9789811219313_0044.

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Lucha, Wolfgang, Dmitri Melikhov, and Hagop Sazdjian. "Tetraquark-Adequate QCD Sum Rules." In European Physical Society Conference on High Energy Physics. Trieste, Italy: Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.364.0536.

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OKA, MAKOTO. "QCD SUM RULES OF PENTAQUARKS." In Proceedings of the International Workshop. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812701855_0049.

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Teryaev, Oleg. "Evolution of sum rules and positivity constraints." In QCD Evolution 2016. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.284.0032.

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Hwang, W.-Y. Pauchy. "Large N[sub c] QCD sum rules." In The third international symposium on symmetries in subatomic physics. AIP, 2000. http://dx.doi.org/10.1063/1.1330916.

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LEE, SU HOUNG. "QCD SUM RULES AND ITS APPLICATIONS." In Proceedings of the International RCNP Workshop. WORLD SCIENTIFIC, 1996. http://dx.doi.org/10.1142/9789814447140_0023.

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Shifman, M. "Vacuum Structure and QCD Sum Rules: Introduction." In Proceedings of the Workshop in Honor of the 60th Birthday of Misha Shifman. WORLD SCIENTIFIC, 2010. http://dx.doi.org/10.1142/9789814304030_0002.

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FORKEL, HILMAR. "QCD GLUEBALL SUM RULES AND VACUUM TOPOLOGY." In Proceedings of the Conference. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812708267_0047.

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Nielsen, M., F. S. Navarra, F. O. Durães, M. E. Bracco, M. Chiapparini, and C. L. Schat. "Hadronic form factors from QCD Sum Rules." In Proceedings of the Sixth International Workshop. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812799814_0014.

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Gubler, Philipp, Makoto Oka, Juan M. Nieves, Eulogio Oset, and Manuel J. Vicente-Vacas. "Two novel methods in QCD sum rules." In INTERNATIONAL WORKSHOP ON CHIRAL SYMMETRY IN HADRONS AND NUCLEI. AIP, 2010. http://dx.doi.org/10.1063/1.3541987.

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Reports on the topic "QCD sum rules"

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Chan, C. T., E. M. Henley, and T. Meissner. {pi}-{eta} mixing from QCD sum rules. Office of Scientific and Technical Information (OSTI), March 1994. http://dx.doi.org/10.2172/10155840.

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Xu, J. Measurement of the Neutron Spin Structure Function and Its Implications for QCD Sum Rules. Office of Scientific and Technical Information (OSTI), January 2004. http://dx.doi.org/10.2172/826673.

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